Joseph de bondini and albeecht seefeldee



' NITED STATES JOSEPH DE BONDINI AND ALBRECHT SEEFELDEB, OFCONSTANTINOPLE, TURKEY.

WlCK-HOLDING ATTACHMENT FOR LAMPS.

SPECIFICATION forming part of Letters Patent No. 365,973, dated July 5,1887.

Application filed November 10, 1886.

To all whom it may concern.-

Be it known that we, JosnrH DE BONDINI, a subject of the King of Italy,and ALBRECHT SEEFELDER, a subject of the Emperor of Austria, bothresidents of Constantinople, Turkey, haveinvented anew and usefullmprovementin LampWVicks or Burner-Tips, ofwhich the following is aspecification.

The irregular burning of lamps using petroleum or other oils, theflickering of the light, the bad odor which is given out, and thefrequent breaking of chimneys are caused largely, if not principally, bydefects in the wicks of such lamps. The trimming of the wick is apt tobe uneven unless great care is used. There is also an inerustation or'carbonization of the wick, which impairs the steadiness and brilliancyof the flame, and in trimming the wick carbonized particles fall intothe interior of the burner, where they are apt to obstruct the passageof air to the flame and to give out an unpleasant odor. To overcomethese objections, it has been proposed by several inventors to provideburner-tips of asbestus or other incombnstible materials, such tipsbeing arranged in contact with the top of the usual wick or otherabsorbent material, which is used solely for the purpose of drawing upthe oil to v the burner-tip. Such asbestus-tipped wicks have usuallybeen inclosed in a tube and the flame adjusted by raising or loweringsaid tube, or by raising or lowering another tube around it. So far aswe are aware such incombustiblc tips have not proved very satisfactoryin actual use, since the mineral substances of which they have beenformed are not suflieiently absorbent of the oil, and their pores areliable in time to become clogged or choked Serial No. 218,500. (Nomodel.)

or Argand burner. Fig. 2 is a similarview of a tip for a flat burner.Fig. 3 is a perspective View of the retaini ng-cap for an Argand burner,and Fig. 4 is such a view of the cap for a flat burner. Fig. 5shows inperspective an Argand bu rncr provided with our invention, and Fig. 6shows a flat burner so provided. Fig. 7 is a vertical mid-section of anArgand burner, and Fig. 8 a similar section of a 'flat burner providedwith our invention.

Let A designate the usual burner, either flat or round; and B, the usualwick. In the case of a flat burner theavick is held and guided in a flatwick-tube, d, as usual. In the case of an Argand burner the wick is heldbetween an outer tube, (1, and an inner tube, 0, as usual. In fact, ourinvention involves no change in the existing construction of ordinary orcommon'lamps to which it is to be applied.

The burner-tip a, two forms of which are shown detached in Figs. 1 and2, is formed of papiermaeh, which is made porous or unsized, so as to becapable of absorbing the oil, and is molded of the same shape as thewick to which itis to be applied. For an Argand wick it is made in theshape of a ring, and for a flat Wick it has the form of a straight bar.In either case its thickness should be the same as that of the wick, andit should have a height of four or five millimeters by preference.

The burner-tip, when placed on the wick;

should touch it at all points, in order that itv may absorb the oil fromthe wick readily and uniformly. To insure this the wick should betrimmed to a uniform level, so that its top shall conform to the underside of the burnertip. The burner-tip is then placed on the wick andheld in place thereon by any suitable retaining device that will keep itpressed into close contact therewith without interfermeans that we havedevised for this purpose consist of a ring, I), of sufficient weight,carrying fingers c c, the pointed ends of which are bent over, as shownin Figs. 3 and 4, so that when placed on the burner these points orhooks rest upon the top of the burner-tip, as shown in Figs. 5 to 8. Thering I) is of any shape-circular, conical, or rectangular-according tothe shape of the burner with which it is to be used, and is large enoughto pass' easily over the wick-tube d. The points or hooks c c arearranged atintervals all around the burner-tip, so that thelatter cannotescape from them. The ring I) is of metal, having sufficient weighttokeep the burner-tip pressed closely against the wick. As the wick isadjusted up or down to regulate the flame, the burner-tip moves up ordown with it.

The retaining device shown may be replaced by any other equivalentdevice which will'exert aslight downward tension or pull upon theburner-tip sufficient to hold it in contact with the wick and permit ofthe adjustment thereof. The tension should be sufficient, that when thewick is lowered the burner-tip will be drawn down with it until its topis flush with the top of the wick-tube, and it should not be so greatthat when the wick is raised the burner-tip will resist its ascent.

In the use of our invention the burner-tip is simply placed on the wickand the retaining-ringbis dropped overit. When the burnertip becomesinorusted or otherwise needs renewing, it is taken off and thrown awayand a new one put on in its place, which is. the work of an instant.burner-tip may be done every day, or at less frequent intervals. Theburner-tips will be manufactured in standard sizes and sold in Thisrenewal of the boxes, and being very cheap their use will be bothconvenient and economical. There is no trimming of the wick, and henceno spoiling of it by irregular cutting. The lamp burns with greaterbrilliancy and steadiness, and there is much less liability of breakingthe chimney. There are, furthermore, no carbonized particles which fallinto the burner, and hence no bad odor is given out.

We claim as our invention- 1. In an oil-lamp, the combination,with thewick-tube and wick, of a burner-tip of absorbent material placed on thewick, and a retaining device independent of the wick-tube engaging theburner-tip and constructed to exert a downward tension thereon, wherebythe tip is held in contact with the wick without interfering with thevertical adjustment of the latter, substantially as set forth.

2. In an oil-lamp, the combination, with the wick-tube and wick, of anabsorbent burnertip placed on the wick, and a retaining deviceconsisting of a ring constructed to pass over the wick-tube, and aseries of hooks carried by said ring and engaging the burner-tip,whereby the weight of the ring holds the burnertip against the top ofthe wick, sub stantially as set forth.

3. A retaining device for burner-tips, consisting of. a ring, b, shapedto slip over the wick-tube of a lamp, and hooks c 0, extending upwardlyfrom said ring and pointcdinward- 1y, substantially as set forth.

In witness whereof we have hereunto signed our names in the presence oftwo subscribing witnesses.

JOSEPH DE BONDIN I. ALBRECHT SEEFELDER. I

Witnesses:

O. SoMPIi: DE BONDINI, D. N. DEMETRIAD.

